About: http://webisa.webdatacommons.org/64505458

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	FIG. 11 is a graph showing ideal measured face angles and perceived face angles at various lie angles ranging from 40 to 60 degrees.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com